| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO, NO DIFFICULTY | 22017 |
89.6%
|
| 2 | YES, SOME DIFFICULTY | 768 |
3.1%
|
| 3 | YES, A LOT OF DIFFICULTY | 186 |
0.8%
|
| 4 | CANNOT DO IT AT ALL | 16 |
0.1%
|
| 5 | (TOO YOUNG TO TELL) | 1596 |
6.5%
|
| Sysmiss | 137 |